Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1785/JohnJohnson_ChoiceCollectionVol8-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4870-JohnJohnson_ChoiceCollectionVol8-V2.ps) >>/Users/jc/w/tmp/Tune-4870-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1785/JohnJohnson_ChoiceCollectionVol8-V2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_4870.log 173367 Log file, useful mostly for debugging
Coll_48707.log 679612 Log file, useful mostly for debugging
Tune-4870-JohnJohnson_ChoiceCollectionVol8-V2.abc 172 ABC music file with the extracted tune(s)
Tune-4870-JohnJohnson_ChoiceCollectionVol8-V2.ps 6 PostScript
Tune-4870-JohnJohnson_ChoiceCollectionVol8-V2.txt 172 Plain-text file with the extracted tune(s)
Tune-4870-get.log 9808 Log file, useful mostly for debugging
Tune-48700-get.log 22579 Log file, useful mostly for debugging
Tune-48701-get.log 3658 Log file, useful mostly for debugging
Tune-48702-get.log 1313 Log file, useful mostly for debugging
Tune-48703-get.log 6548 Log file, useful mostly for debugging
Tune-48704-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.abc 188 ABC music file with the extracted tune(s)
Tune-48704-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.ps 6 PostScript
Tune-48704-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.txt 188 Plain-text file with the extracted tune(s)
Tune-48704-get.log 4958 Log file, useful mostly for debugging
Tune-48707-get.log 3962 Log file, useful mostly for debugging
Tune-48709-get.log 13256 Log file, useful mostly for debugging
These files should be available for 24 hours.